Gates 20386 Radiator Coolant Hose - Lower, Upper or Upper - Pipe To Radiator

Gates 20386 Molded Coolant Hose Overview

Gates 20386 is a molded radiator coolant hose built to OEM-quality specifications for upper, lower, bypass, heater, and related cooling-system applications. Made from EPDM, it is shaped for direct replacement use on select GMC, Dodge, and Buick vehicles, including classic GMC G15/G1500 Van, Dodge Dart, Dodge Charger, and Buick Riviera applications.

The Gates Molded Coolant Hose line is engineered as a broad replacement range for radiator hose service, helping reduce the time spent sourcing OE dealer parts for the correct molded shape and fit.

Key Features

• EPDM construction for coolant-system durability
• Molded hose profile for application-specific routing
• 1.5 in. inside diameter at both ends
• 15.6 in. centerline length
• No spring and no quick-connect fittings
• Direct replacement radiator coolant hose for select upper and lower hose positions

Application Details

This Gates 20386 radiator coolant hose is listed for multiple classic vehicle applications, including Fits 1967-1970 GMC G15/G1500 Van, Upper - Pipe To Radiator; Fits 1967-1970 GMC G25/G2500 Van, Upper - Pipe To Radiator; Fits 1970 GMC G35/G3500 Van, Upper - Pipe To Radiator; Fits 1969 Dodge Charger, Lower; Fits 1968-1969 Dodge Dart, Lower; Fits 1968-1969 Dodge Dart, Upper; Fits 1966-1968 Dodge Charger, Lower; Fits 1964-1967 Dodge Dart, Lower; Fits 1962 Dodge Dart, Lower; and Fits 1966 Buick Riviera, Lower. This part cross-references Four Seasons 20386 and Dayco 70306 for the same application.

What It Helps Fix

• Cracked or hardened coolant hose material
• Coolant leaks at a molded hose section
• Incorrect hose routing from a universal replacement
• Overheating caused by restricted or deteriorated hose flow
• Fitment issues when replacing an OE-shaped radiator hose

Installation Notes

Verify hose routing, end diameters, and centerline length before installation. Match the molded shape to the original hose path on the vehicle, and inspect adjoining clamps, radiator necks, and pipe connections for wear or corrosion before reassembly. Confirm the correct upper or lower position for your specific application, especially on Dodge Dart, Dodge Charger, and GMC van cooling-system service.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement cooling-system service. The EPDM construction and molded design support accurate fitment on listed applications, including classic GMC, Dodge, and Buick models.